Cited by 75Wireless Power Transfer SystemsWireless Body Area NetworksNeuroscience and Neural Engineering

Active photonic wireless power transfer into live tissues

Open access
Kim, Juho, Seo, Jimin, Jung, Dongwuk, Lee, Taeyeon, Ju, Hunpyo, Han, Junkyu, Kim, Namyun, Jeong, Jinmo +3 more·2020·Proceedings of the National Academy of Sciences

Abstract

Significance: One of the highest demands in biomedical electronic implants is to provide a sustainable electrical power for extended healthy life without battery replacement surgeries. The reported technology enables providing sustainable power wirelessly through live tissues as demonstrated by a key biomedical function, i.e., electrical stimulation, of implantable medical electronics at the level of a full system. The approach capable of providing enough power (74.1 μW/cm 2 , active photovoltaic area: 11.1 mm 2 ) indoor or outdoor during day and night should lead to developments of numerous medical electronic implants with advanced and diverse functions that are currently limited by a limited electrical power in live bodies.

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Registry

Crossref · 10.1073/pnas.2002201117

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39 of 39 references verified0 citation errors · 0 not checkable

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  • 670 nm NIR light penetrates 2.5 mm into live tissues and has high transmittance (60-70%), boosting energy transfer efficiency.

    “A study indicates that 670 nm NIR light penetrates 2.5 mm into live tissues and has high transmittance (60–70%), boosting energy transfer efficiency.”

    From Comparative analysis of energy transfer mechanisms for neural implants (2024) · cites this paper as Kim et al., 2020

  • 450-600 nm wavelengths have lower transmittance (30-50%), limiting their efficacy.

    “Conversely, 450–600 nm wavelengths have lower transmittance (30–50%), limiting their efficacy (Kim et al., 2020).”

    From Comparative analysis of energy transfer mechanisms for neural implants (2024) · cites this paper as Kim et al., 2020

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Authors
Kim, J., Seo, J., Jung, D., Lee, T., Ju, H., Han, J., Kim, N., Jeong, J., Cho, S., Seol, J. H., & Lee, J.
Affiliations
  • Gwangju Institute of Science and Technology (KR)
  • School of Mechanical Engineering, Gwangju Institute of Science and Technology (GIST), 61005 Gwangju, Republic of Korea;
Corresponding author
Lee, Jongho
Venue
Proceedings of the National Academy of Sciences
Published
2020-07-06
Volume
117
Issue
29
Pages
16856-16863
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W3039974818
Cited by
75
References
39
Citations by year
2026: 11 · 2025: 10 · 2024: 12 · 2023: 15 · 2022: 14 · 2021: 12 · 2020: 1
FWCI
3.61
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Research Foundation
  • Gwangju Institute of Science and Technology
  • National Research Foundation of Korea (2019R1A2C1090072)
  • Ministry of Science and ICT, South Korea
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Wireless Power Transfer Systems
  • Physical Sciences › Engineering › Biomedical Engineering › Wireless Body Area Networks
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
Keywords
wireless power transfer, solar cells, biomedical implants, battery-free power, electrical stimulation, medical electronics
MeSH terms
Wearable Electronic Devices, Animals, Heart Rate, Heart-Assist Devices, Skin Physiological Phenomena, Transducers, Photons, Mice, Wireless Technology

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